42189975

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 81244800

約数和(自身を除く): 39054825

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 71, 75, 95, 139, 171, 213, 225, 285, 355, 417, 475, 639, 695, 855, 1065, 1251, 1349, 1425, 1775, 2085, 2641, 3195, 3475, 4047, 4275, 5325, 6255, 6745, 7923, 9869, 10425, 12141, 13205, 15975, 20235, 23769, 29607, 31275, 33725, 39615, 49345, 60705, 66025, 88821, 101175, 118845, 148035, 187511, 198075, 246725, 303525, 444105, 562533, 594225, 740175, 937555, 1687599, 2220525, 2812665, 4687775, 8437995, 14063325, 42189975]

約数ペア:

[(1, 42189975), (3, 14063325), (5, 8437995), (9, 4687775), (15, 2812665), (19, 2220525), (25, 1687599), (45, 937555), (57, 740175), (71, 594225), (75, 562533), (95, 444105), (139, 303525), (171, 246725), (213, 198075), (225, 187511), (285, 148035), (355, 118845), (417, 101175), (475, 88821), (639, 66025), (695, 60705), (855, 49345), (1065, 39615), (1251, 33725), (1349, 31275), (1425, 29607), (1775, 23769), (2085, 20235), (2641, 15975), (3195, 13205), (3475, 12141), (4047, 10425), (4275, 9869), (5325, 7923), (6255, 6745)]